By Murray Wardrop, telegraph.co.uk
Al Gore, the former US Vice-President, has become embroiled in a climate change spin row after claiming that the Arctic could be completely ice-free within five years.
Speaking at the Copenhagen climate change summit, Mr Gore said new computer modelling suggests there is a 75 per cent chance of the entire polar ice cap melting during the summertime by 2014.
However, he faced embarrassment last night after Dr Wieslav Maslowski, the climatologist whose work the prediction was based on, refuted his claims.
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